Lighting fixture

Abstract

A light fixture includes a mounting housing comprising a junction box, a first flange and a plurality of heat dissipation fins, and a second housing comprising a second flange. The mounting housing is mountable in an aperture in a panel, and the second housing is mountable to the first housing.

What is claimed is: 
     
       1. A lighting fixture for mounting into an aperture in a panel, the lighting fixture comprising:
 a first housing, comprising:
 a junction box having at least one opening for receiving at least one conductor; 
 a first flange extending from an exterior of the first housing, the first flange for retaining the first housing against an exterior surface of the panel surrounding the aperture, the first flange defining an inner perimeter and an outer perimeter, the first flange comprising a first face and an opposing second face, the second face for abutting the exterior surface of the panel when the first housing is inserted into the aperture; and 
 a plurality of heat dissipation fins each extending from an exterior of the junction box toward the inner perimeter of the first flange, the plurality of heat dissipation fins being disposed within the inner perimeter; and 
 
 a second housing comprising a second flange complementary to the first face of the first flange, the second housing being mountable to the first housing; 
 wherein the junction box, the first flange and the plurality of heat dissipation fins are integral. 
 
     
     
       2. The lighting fixture of  claim 1 , wherein the plurality of heat dissipation fins substantially circumscribes the junction box. 
     
     
       3. The lighting fixture of  claim 2 , wherein the plurality of heat dissipation fins extends in a direction of mounting. 
     
     
       4. The lighting fixture of  claim 1 , wherein
 each of the aperture, the inner perimeter and the outer perimeter is circular and has a diameter; and 
 the diameter of the inner perimeter is smaller than the diameter of the aperture and the diameter of the outer perimeter is larger than the diameter of the aperture. 
 
     
     
       5. The lighting fixture of  claim 1 , further comprising an elastomeric seal for sealing the second flange against the exterior surface of the panel. 
     
     
       6. The lighting fixture of  claim 5 , the second housing further comprising a lens. 
     
     
       7. The lighting fixture of  claim 1 , wherein the first flange comprises a plurality of threaded mounting holes disposed between the inner perimeter and the outer perimeter for receiving complementary threaded fasteners on the second flange. 
     
     
       8. The lighting fixture of  claim 1 , the first housing further comprising a cap plate. 
     
     
       9. The lighting fixture of  claim 1 , further comprising an emitter board. 
     
     
       10. The lighting fixture of  claim 1 , further comprising a gasket disposed between the first flange and the second flange. 
     
     
       11. The lighting fixture of  claim 1 , wherein the junction box, the first flange and the plurality of heat dissipation fins are formed as a unitary piece. 
     
     
       12. A mounting housing for a lighting fixture, the mounting housing comprising:
 a junction box having at least one opening for receiving at least one conductor; 
 a flange extending from an exterior of the mounting housing, the flange for retaining the mounting housing against an exterior surface surrounding an aperture in a panel, the flange defining an inner perimeter and an outer perimeter, the flange comprising a first face for mating against a complementary flange of a second housing, and an opposing second face for abutting the exterior surface of the panel when the mounting housing is inserted into the aperture, and each of the aperture, the inner perimeter and the outer perimeter is circular and has a diameter; and 
 a plurality of heat dissipation fins each extending from an exterior of the junction box toward the inner perimeter of the flange of the mounting housing, the plurality of heat dissipation fins being disposed within the inner perimeter; 
 wherein the junction box, the first flange and the plurality of heat dissipation fins are integral. 
 
     
     
       13. The mounting housing of  claim 12 , wherein the plurality of heat dissipation fins substantially circumscribes the junction box. 
     
     
       14. The mounting housing of  claim 13 , wherein the plurality of heat dissipation fins extends in a direction of mounting. 
     
     
       15. The mounting housing of  claim 12 , wherein
 the diameter of the inner perimeter is smaller than the diameter of the aperture and the diameter of the outer perimeter is larger than the diameter of the aperture. 
 
     
     
       16. The mounting housing of  claim 12 , wherein the flange of the mounting housing comprises a plurality of threaded mounting holes disposed between the inner perimeter and the outer perimeter for receiving threaded fasteners. 
     
     
       17. The mounting housing of  claim 12 , the mounting housing further comprising a cap plate. 
     
     
       18. The mounting housing of  claim 12 , wherein the junction box, the flange and the plurality of heat dissipation fins are formed as a unitary piece.